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APACHE CALCITE
Unified SQL optimization across heterogeneous data sources
Apache-2.0
ABOUT
Querying data across multiple heterogeneous sources — relational databases, NoSQL stores, file systems, and streaming platforms — typically requires separate query languages, optimization strategies, and connection logic for each backend. Apache Calcite solves this with a unified SQL parsing and optimization framework that applies hundreds of cost-based and rule-based optimizations across any data source with a Calcite adapter — enabling federated queries across databases, files, streams, and NoSQL stores through a single standard SQL interface.
INTEGRATION GUIDE
1. Execute federated SQL queries across multiple databases, file formats, and streaming sources
2. Optimize complex analytical queries with hundreds of cost-based optimization rules
3. Build custom SQL query engines for new data sources using the Calcite adapter framework
4. Parse and rewrite SQL queries for schema mapping and data governance enforcement
5. Power SQL interfaces for streaming platforms with Calcite's streaming query optimization
TAGS
sqlquery-optimizationdata-queryingbig-datafederated-queryapachejdbc